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Articles by Tanay BILAL
Total Records ( 3 ) for Tanay BILAL
  Ismail Abas , Tanay Bilal , Erol Ercag and Onur Keser
  The aim of this study was to investigate the effects of the addition of Organic Acid (OA) and Zeolite (ZE) alone or combined to the diet with microbial phytase contained low (3.9 g kg-1) and adequate (7.0 g kg-1) levels of Phosphorus (P) on bone mineral concentration. In this study, 480 one-day old broiler chicks were used. Chicks were assigned equally to 8 groups for the study carried out 6 replicates during 42 days. Basal ration contained 600 phytase enzyme unit (FTU kg-1) was formulated separately for starter and grower period. On day 21, tibia ash rate (p<0.001) and ash P levels (p<0.03) decreased in chicks fed low P ration. Similarly, the addition of ZE also decreased tibia ash rate on day 21 (p<0.01). The use of OA+ZE increased the ash P level on day 42 (p<0.05). Depending on P level of ration, the level of P in tibia ash samples decreased only on day 21 (p<0.03). On day 42, tibia P level was decreased and increased by the addition of ZE and OA+ZE, respectively (p<0.05). The addition of OA+ZE increased the bone Zn level on day 21. Cu level of bone decreased (p<0.05) depending on the low P content of the diet. Also, tibia Mn level increased (p<0.05) depending on the increase in the P level of diet at the end of the experiment. P level of litter material increased depending on the additives (p<0.02) and the P level of the diet (p<0.01).
  Tanay Bilal , Huseyin Eseceli , Aysen Altiner and Onur Keser
  The aim of this study was to examine the effect of vitamin D3 and/or zeolite supplementation in presence of phytase enzyme on serum total Calcium (Ca), inorganic Phosphorus (Pi) levels and Alkaline Phosphatase (ALP) activity in laying hens. A total of 120, 28 weeks old laying hens were used for the study. The laying hens were separated to 4 equal groups (5 replicates). The treatment groups were as follows: control diet (300 FTU phytase per kilogram), trial 1 diet (300 FTU phytase + 400 IU vitamin D3), trial 2 diet (300 FTU phytase + 400 IU vitamin D3 + 2% zeolite) and trial 3 diet (300 FTU phytase + 2% zeolite). The experimental period was 16 week. Blood samples were taken on weeks 4, 8, 12 and 16. There were no significant differences between groups for serum ALP activity and Pi levels on weeks 4, 8, 12 and 16. During the study, serum Ca levels were significantly higher in the trial 2 than those of other groups (p<0.05). In conclusion, a significant increase or decrease was not seen in the effect of phytase as a result of the addition of vitamin D3 or zeolite, respectively. There was a significant phytase, vitamin D3 and zeolite interaction for serum Ca level.
  Ismail ABAS , Tanay BILAL and Huseyin ESECELI
  The aim of this study was to investigate the effects of the addition of organic acid (OA), zeolite (ZE), or both to broiler diets with microbial phytase containing low and adequate levels of phosphorus (P) on performance, some serum indices, and ileum pH values. For the study, 480 broiler chicks 1-day old were assigned equally to 8 groups, with 6 replicates (10 chicks per replicate) carried out over 42 days. A basal diet containing 600 FTU of phytase enzyme was formulated separately for the starter and grower periods. Experimental groups were divided into 2 main groups: low P [(0.39% P; basal diet (B), B+OA, B+ZE, and B+OA+ZE)] and adequate P [(0.70% P; basal diet (B), B+OA, B+ZE, and B+OA+ZE)]. The average body weight of the lo-P groups was significantly lower than that of the adequate-P groups. However, birds fed ZE and OA+ZE had increased body weights. Within the first 21 days of the study, the addition of ZE and OA+ZE to diets significantly decreased feed intake, and feed conversion rates improved depending on the P level and the OA+ZE addition. Serum P levels increased depending on the decrease in the level of P in the diet at 21 days, and the ALP concentration at day 42 was found to be statistically lower in the group fed an OA+ZE diet. Ileum pH values in the OA group were found to be lower than those in other groups at 42 days. These results proved that the addition of ZE and OA+ZE to the diet with microbial phytase containing low and adequate levels of P had positive effects on performance.
 
 
 
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